code: def test_infer_schema_mixed_3D_Polygon():
      df = GeoDataFrame(geometry=[city_hall_boundaries, polygon_3D])
  
      assert infer_schema(df) == {
          "geometry": ["3D Polygon", "Polygon"],
          "properties": OrderedDict(),
      }
  
imports: from collections import OrderedDict
  from shapely.geometry import LineString, MultiLineString, MultiPoint, MultiPolygon, Point, Polygon
  import pandas
  import pytest
  import numpy
  from geopandas import GeoDataFrame
  from geopandas.io.file import infer_schema
label_desc: Use image node_id 16 for calling a global function with example usage: test_infer_schema_mixed_3D_Polygon() without return types